For the past several months the Adams Shop, a mom and pop retail store, has suffered costly losses due to the theft of merchandise. Putting in a comprehensive surveillance system that covers all of the entrances and exits at all four of their locations is not feasible at this time. Nevertheless, they have decided to install several surveillance cameras in their flagship store. They notified their employees that the cameras were being installed and placed posters at the store entrances notifying their customers of the new security. Not surprisingly, thefts decreased dramatically within a month and continued to decline over the next six months. Without the cash to install cameras in all the stores, Adams installed fake cameras at the other three stores and let employees and customers at those locations know about the cameras. Thefts dropped at the other stores as well. The concept that most likely explains why the thefts decreased is known as:

In the fall, jay thompson decided to live in a university dormitory. he signed a dorm contract under which he was obligated to pay the room rent for the full college year. one clause stated that if he moved out during the year, he could sell his dorm contract to another student who would move into the dormitory as his replacement. the dorm cost was $5000 for the two semesters, which jay had already paid a month after he moved into the dorm, he decided he would prefer to live in an apartment. that week, after some searching for a replacement to fulfill his dorm contract, jay had two offers. one student offered to move in immediately and to pay jay $300 per month for the eight remaining months of the school year. a second student offered to move in the second semester and pay $2500 to jay. jay estimates his food cost per month is $500 if he lives in the dorm and $450 if he lives in an apartment with three other students. his share of the apartment rent and utilities will be $404 per month. assume each semester is 4.5 months long. disregard the small differences in the timing of the disbursements or receipts. what is the cost of the cheapest alternative?

howard, fine, & howard is an advertising agency. the firm uses an activity-based costing system to allocate overhead costs to its services. information about the firm's activity cost pool rates follows: stooge company was a client of howard, fine, & howard. recently, 7 administrative assistant hours, 3 new ad campaigns, and 8 meeting hours were incurred for the stooge company account. using the activity-based costing system, how much overhead cost would be allocated to the stooge company account?

Which of the following is an example of a positive externality? a. promoting generic drugs would benefit people. b. a lower inflation rate would benefit most consumers. c. compulsory flu shots for all students prevents the spread of illness in the general public. d. singapore has adopted a comprehensive savings plan for all workers known as the central provident fund.